Nepean Bay Weather Forecast

    • 5
    • 18

    Possible shower

    • 11
    • 20

    Showers increasing

    • 10
    • 17

    Showers easing

    • 7
    • 16

    Showers easing. Windy

    • 5
    • 15

    Showers

    • 5
    • 14

    Shower or two. Becoming windy

    • 5
    • 14

    Possible shower

Today 24 Aug Kangaroo Island

Partly cloudy. The chance of fog in the early morning. Medium chance of showers, most likely in the late afternoon and evening. Winds east to northeasterly 15 to 20 km/h tending north to northeasterly 15 to 25 km/h during the morning. Overnight temperatures falling to between 6 and 9 with daytime temperatures reaching around 18.

Investigator Strait Coastal Waters

Wind
Easterly 10 to 15 knots turning north to northeasterly 15 to 20 knots during the morning.
Seas
Around 1 metre.
1st Swell
West to southwesterly 1 to 2 metres, decreasing to 1 to 1.5 metres during the morning, then decreasing to around 1 metre by early evening.
Weather
Partly cloudy.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nepean Bay Temperature Statistics View More

August Temperature

Kingscote Airport (7km)

  • Lowest 19 August, 2025

    -0.2 °C

  • Average August

    10.8 °C

  • Highest 11 August, 2025

    19.1 °C

Climate (2020–Present)

Kingscote Airport (7km)

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  • Average Low 2020–2025

    9.2 °C

  • Average 2020–2025

    14.7 °C

  • Average High 2020–2025

    21.1 °C
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